Handheld steam iron



FIG. 1 is a perspective view of our new design for a handheld steam iron shown in the open configuration;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right elevation view thereof;

FIG. 5 is a left elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines illustrate portions of the handheld steam iron that form no part of the claimed design. 

CLAIM The ornamental design for a handheld steam iron, as shown and described. 